Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy
Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy
A commercial age-hardenable Al-7136 alloy was successfully processed by high-pressure torsion (HPT) at room temperature through 1/8 to 4 turns. Microhardness measurements showed significant hardening even after 1/8 turn with the average hardness value reaching a maximum after 1 turn and then slowly decreasing. Higher hardness values were attained by processing the alloy through one pass of equal-channel angular pressing in a supersaturated condition at room temperature and then applying HPT for 1 or 2 turns. Microstructural observations revealed the possibility of achieving true nanometer grain sizes of <100 nm after processing at room temperature. There were variations in hardness with imposed strain due to the fragmentation and subsequent growth of precipitates during processing.
4621-4631
Duan, Zhi C.
de4b42a9-bf9b-403b-bf0b-a52310a8998b
Liao, Xiao Z.
14a06fe7-9bdf-4833-aadf-2f9bd5ac94fc
Kawasaki,, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2010
Duan, Zhi C.
de4b42a9-bf9b-403b-bf0b-a52310a8998b
Liao, Xiao Z.
14a06fe7-9bdf-4833-aadf-2f9bd5ac94fc
Kawasaki,, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Duan, Zhi C., Liao, Xiao Z., Kawasaki,, Megumi, Figueiredo, Roberto B. and Langdon, Terence G.
(2010)
Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy.
Journal of Materials Science, 45 (17), .
(doi:10.1007/s10853-010-4400-0).
Abstract
A commercial age-hardenable Al-7136 alloy was successfully processed by high-pressure torsion (HPT) at room temperature through 1/8 to 4 turns. Microhardness measurements showed significant hardening even after 1/8 turn with the average hardness value reaching a maximum after 1 turn and then slowly decreasing. Higher hardness values were attained by processing the alloy through one pass of equal-channel angular pressing in a supersaturated condition at room temperature and then applying HPT for 1 or 2 turns. Microstructural observations revealed the possibility of achieving true nanometer grain sizes of <100 nm after processing at room temperature. There were variations in hardness with imposed strain due to the fragmentation and subsequent growth of precipitates during processing.
This record has no associated files available for download.
More information
Published date: 2010
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 170697
URI: http://eprints.soton.ac.uk/id/eprint/170697
ISSN: 0022-2461
PURE UUID: 96be2369-aa72-43d8-8a02-f9e304cdf643
Catalogue record
Date deposited: 11 Jan 2011 11:36
Last modified: 14 Mar 2024 02:47
Export record
Altmetrics
Contributors
Author:
Zhi C. Duan
Author:
Xiao Z. Liao
Author:
Megumi Kawasaki,
Author:
Roberto B. Figueiredo
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
